Casa Hacienda Illanya, Colonial hacienda in Abancay District, Peru.

Casa Hacienda Illanya is a two-level building of adobe, lime and stone arranged in an L shape, with French-style elements and balconies facing the Abancay valley. Its interior walls carry murals of the local flora. It now houses the Archaeological and Anthropological Museum of Apurímac and a Ministry of Culture office.

The hacienda dates from the early 17th century; its first recorded owner was Isabel Junco y Estrada. It later passed to the Santa Catalina convent of Abancay, then to Colonel Isidoro Guisado, the Lázaro Letona e Hijos company, Antonio Araoz and Cirilo Trelles. The last owner was María Letona. The hacienda house itself was built between 1860 and 1890 and restored by 2006.

The building now serves as the Archaeological and Anthropological Museum of Apurímac, displaying collections that show regional objects from different periods. The exhibitions help visitors understand the history and traditions of the local community through concrete artifacts.

The museum is located around 4 kilometers from central Abancay and is accessible by local road. Visitors should check conditions when planning a visit, as opening times may vary with the season.

The interior walls display murals featuring local plants and regional motifs. These artistic details show the craftmanship of earlier residents and their connection to the surrounding landscape.